Illuminated road marker



T. P. DORN Sept. 12, 1939.

ILLUMINATED ROAD MARKER Filed Dec. 6, 1937 Theodore orn ATTORNEYS Patented Sept. 12, 1939 UNITED STATES PATENT oFFlcE ILLUMINATED ROAD MARKER Theodore P. Dorn, Detroit, Mich.

Application December 6, 1937, Serial No. 178,409

1 Claim.

'Ihis invention relates to road markers of the light reflecting type so that visibility thereof will be efficient at night time and has for the primary object the provision of a durab-le and inexpensive device of this character which will remain firmly anchored in a roadway and will not readily become dislodged by a vehicle nor will it be hazardous to a vehicle when contacting the same.

With these and other objects in View, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure l is a top plan view illustrating a road marker constructed in accordance with my in- 20 vention.

Figure 2 is a sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a sectional view taken on the line 3-3 of Figure 1.

Figure 4 is a sectional view taken on the line 4-4 of Figure 2.

Figure 5 is a sectional View taken on the line 5-5 of Figure 2.

Referring in detail to the drawing, the numeral I indicates a top plate having a convex curvature and provided with a depending peripheral flange 2 adapted to rest upon a base 3. The outer face of the top plate is preferably knurled as shown in the drawing in Figure 1, D and is provided with a series of openings for the reception of cups 4. The walls of the openings are shouldered engaged by flanges on the cups. The cups support light reflecting elements 5 exposed to View so that when the light rays from a vehicle shine thereon the light rays will be reflected back to the driver of the vehicle. The cups have formed thereon screw threaded shanks 6 that extend through washers 1. The washers engage the inner face of the top wall. Nuts 8 are threaded onto the Shanks 6 against the washers. The washers cooperate with the flanges of the cups in firmly anchoring the cups in the openings of the top plate.

The base 3 is of annular formation and is in a roadway. The

anchoring post I0 gradually tapers from its unattached end to its attached end. The cross member 9 has integral therewith a rib II, the upper edge of which is shaped to conform to the contour of the top plate and engages therewith. The upper edge of the rib may be notched to receive washers of certain of the cups and also is provided with notches I2 in the lower edges thereof defining openings between the rib and the cross member 9. The ends of the rib are provided with notches I3 in which are adapted to move lugs I4 integral with the ange 2 of the top plate for the purpose of anchoring the top plate on the base.

The

way and the parts of the device together.

The

lead when hardened prevents accidental displacement of the device from the roadway and separation of `the parts from each other.

the lead completely fills the space. between the top plate and base and passes through the notches in the rib, said top plate cannot become accidentally disconnected from the base.

What is claimed is:

A reiiector mount for a road marker, comprising a base plate, a top plate releasably engageable with the base plate, said top plate having openings, cup-like members accommodated within said openings, fasteners securing the cupshaped members in said openings and concealed between the top and base plates, a rib carried by the base plate and shaped to conform to and contacting with said top plate, said rib having notches, lugs formed on the flange to engage certain of said notches, and a filler between the said plates and carried intoy the notches past said ribs for anchoring the top and base plates together.

THEODORE P. DORN. 

